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23 Οκτ 2020 · During aerobic respiration, the electron transport chain, and most of the chemical reactions of respiration, occur in the mitochondria. The mitochondria’s system of membranes makes the process much more efficient by concentrating the chemical reactants of respiration together in one small space.
31 Οκτ 2023 · Both methods are called anaerobic cellular respiration, where organisms convert energy for their use in the absence of oxygen. Certain prokaryotes, including some species of bacteria and archaea, use anaerobic respiration.
Once acetyl-CoA is formed, aerobic or anaerobic respiration can occur. When oxygen is present, the mitochondria will undergo aerobic respiration which leads to the Krebs cycle. However, if oxygen is not present, fermentation of the pyruvate molecule will occur.
Ecological importance. Anaerobic respiration is a critical component of the global nitrogen, iron, sulfur, and carbon cycles through the reduction of the oxyanions of nitrogen, sulfur, and carbon to more-reduced compounds.
Key points. Respiration is a chemical reaction which takes place in all livings cells and releases energy from glucose. Anaerobic respiration occurs without oxygen and releases less energy but more...
In prokaryotic cells, H + is pumped to the outside of the cytoplasmic membrane (called the periplasmic space in gram-negative and gram-positive bacteria), and in eukaryotic cells, they are pumped from the mitochondrial matrix across the inner mitochondrial membrane into the intermembrane space.
28 Μαΐ 2024 · In the fluid part of the cytoplasm, anaerobic respiration (both glycolysis and fermentation) takes place, while the majority of the energy production in aerobic respiration takes place in the mitochondria.
